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(No Model.) 4 3 Sheets -Sheet 1 E. BERTRAM & E. SANDERS.

I LINOTYPE MACHINE.

, 110.563.6 13. Patented J u1y 7,1896.'

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(No Madel.) 3 Sheets-8heet 2.

E. BERTRAM & E. SANDERS.

. LINOTYPE MACHINE.

No. 563,643. Patented July '7, 1896.

m: aims PETERS an. PHOYD-UYHQ. imsmxcrmh u r.

(No M odel.) 3 SheetsSheet 3. E. BERTRAM & E. SANDERS.

LINOTYPE MACHINE.

,643. Patented July 7, 1896.

UNITED STATES PATENT ErcE.

ERNEST BERTRAM AND ERNST SANDERS, OF NElV YORK, N. Y.

LlNOTYPE-MACHlNE.

SPECIFICATION forming part of Letters Patent No. 563,643, dated July 7,1896.

Application filed December 28, 1892. Serial No. 456,559. (No modehl Toall whom it may concern:

Be it known that we, ERNST BERTRAM and ERNST SANDERSpitizens of theUnited States, residing at New York, in the county of New York and Stateof New York, have invented certain new and useful Improvements inLinotype-Machines and we do declare the follow in g to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to the letters ofreference marked thereon, which form a part of this specification.

This invention relates to the class of machines known as linotype, ofwhich the Mergenthaler machine, substantially as shown in Patent No.436,501, granted September 16, 1890, is a type, although the saidinvention is equally applicable to the machine known as the Rogers'lypograph, and, in fact, to all those whose function it is to cast aline stereotype, otherwise known as a linotype or type-bar.

The object of the present invention is to provide means, in connectionwith and under the control of the justification mechanism whereby thecasting operation is prevented whenever the line of matrices in front ofthe mold is not completely filled out after the justifyin g operation.has been completed-that is to say, after the double-wedge spaces betweenthe matrices have been spread laterally to their utmost extent and therestill remain gaps or crevices, however slight, between any two matrices,or between the spaces and the matrices, into which gaps the molten metalwould flow to form fins were the pump to act under such conditions. Forthis purpose adevice embodying our invention in its preferred formembraces alocking device or catch, such as a locking-bolt, adapted to beoperated to stop or look the plunger of the metal-pump, preferably bybeing projected outwardly u nder the pump-lever of the metalpot (fromwhich the molten metal is injected into the linotype-mold) whenever thejustification-lever has moved the full extent of its stroke. It nevermakes a stroke when the mold contains a sulficient number of matrices,inasmuch as under such conditions the double wedges against whichthe-justification-lever acts, would be expanded laterally to such anextent as to arrest the lever be fore it has completed its stroke, aswill be readily understood by those familiar with these machines. lVeprovide the j ustilication lever for this purpose with an arm or shelf,which when the lever makes a full stroke bears against and rocks anotherlever, which in turn is connected with a bell'crank lever suitablyconnected to the pump-lever lockbolt.

Our invention also embraces an alarm,which may be of any well-known orsuitable form, and which is so connected with the casting mechanism thatit will sound to n otify the operator that no line has been cast; and myinvention embraces such further means, combinations of parts, andfeatures as will be hereinafter more particularly pointed out in theclaims.

In the drawings accompanying this specification, Figure 1 is a diagramshowing the relation of the justification mechanism to thelinotype-casting mechanism and to the pumplever-stopping mechanism,interposed between the two in the preferred embodiment of our invention5 Fig. 2,a side elevation of the said pump-lever-stoppi11g mechanism andso much of the adjacent mechanism as necessary to show its operation;Fig. 8, a front eleva tion, partly in section, of the same; Fig. 4:, adetail view of the interior of the alarm-bell and its immediatemechanism; Fig. 5, a detail sectional view of the pump-lever-lockingbolt, and Fig. 6 a top sectional view of the conncctingmechanism betweenthe alarm and the locking-bolt.

In the drawings, A represents the metalpot, from which the molten metalis injected into the linotypemold through the nozzle (a by thedepression of the piston or plunger a, which, as shown, is connectedwith the pumplever B for this purpose. The pump-lever B is actuated bythe pump-spring rod O, which at the moment of casting is yield inglyforced downwardly upon the same by the compression of the pump-spring 0,bearing upon the washer c on the pump-spring rod, as in the aforesaidMergenthaler machine. For the purpose of preventing the pump-spring rodC from slipping off from the pump-lever E the latteris provided with anenlargement b, v

- having a socket in its top, which is engaged by the end of thepump-spring rod C.

D represents the justification-lever, which at the proper time is bywell-known mechanchines now in use.

The mechanism thus far described is old and embodied in one class oflinotype-1nae will now proceed. to describe that part ofthe mechanismwhich embodies our invention in its preferred form.

I By referring to Figs. 1, 2, and 3 it will be noted that thejustification-lever D is pro- I vided at its forward end, which riseswhen the said lever makes its stroke for justifying, with a dependingarm or rod E, which arm is provided with a horizontal lug or shelf 6. Inthe path of said lug e is arranged the end of a lever F, fulcrumed at fin any fixed part of the machine; and this lever F is by intermediatemechanism connected w-ith a looking device or catch in the form of alock-bolt G, guided in a suitable casing in a fixed part of the machine,and so arranged that when it is thrust outwardly, as indicated in dottedlines in Fig. 3, it will lie under the pumplever and thus lock the same.

The mechanism which we prefer to'employ for this purpose consists,essentially, in a pit man H, connecting the arm of lever F, opposite tothe horizontal shelf e, with a bellcrank I, pivoted at i and connectedby a link i" with a stud g, projecting laterally through a slot 9' inthe casing, in which the lock-bolt works. In order to retain the forwardend entirely within the casing when the same is not positively thrustoutwardly by the mechanism just described, we provide the same with anautomatic returning mechanism, preferably in the form of a spring 9encircling the bolt G, which bears against a rear shoulder g on thelock-bolt, and. a forward interior shoulder g in an enlarged portion ofthe easing, adapted to receive the spring 9 In order to prevent the studg from being loosened and the mechanism depending thereon from becomingdisarranged or injured' by the said studs striking against the sides ofthe slot g,we make said slot somewhat longer than the stroke of saidstud and so that the same will not strike the end walls of the said slotat either stroke, and we preferably arrange the casting or other fixedpart K of the machine, on which'the alarm, to be hereinafter describedmay be mounted, in such a position that the rear end of the bolt G isarrested by and abuts against said casing when the lockin g mechanism isnot in operation, as shown in. full lines in Fig. 5.

In order to be able to accurately adjust the precise point in its upwardstroke when the lug e will act upon the lock-bolt G, through theintermediate mechanism, we provide the lever F with a stroke-adjustingscrew f. against whose end the lug e bears when the justification-levermakes a full stroke.

In order to notify the operator that the pump-lever has been locked, andhence that noline has been oast,.we connect an alarm L with thepump-lever-locking mechanism. which alarm may be of any suitable ordesired form, and may consist of a gong, as shown. adapted to be struckby a hammer 1, whose tripping-lever Z" is connectedwith the stud 5/ onthe lock-bolt G by, a connecting-rod i which connecting-rod may beprovided at its end with two adjustable nuts Z betweenwhich' the tail ofthe tripping-lever Z is-held.

The mechanism thus described operates as follows: When thejustification-lever D makesits stroke to justify or fill out the lineunder ordinarycircumstances, that is to say.

when the line of matricesand spaces in front of the mold iscaused tocompletely and compactly close the mold, the said justification 3 justification-lever can make a full stroke, and

thus strikes the lever F through the medium of the adj Listing-screw fon the same, and by drawing down the pitman H tilts the bellcrank I,which in turn thrusts the lock-bolt G out of its casing directly underthe pumplever B, as shown in dotted lines in Fig. 3. The pump-lever B isthus locked and no metal can be injected into the mold. At the same timethe alarm L is sounded by virtue'of the connecting-rod Z ,which, throughthe intermediate mechanism-described, trips the hammer of the alarm,thereby notifying the operator that no line has been cast. As soon asthe justification-lever returns to its position of rest and the lockingmechanism is released,

his work as the same proceeds and without first casting such linotypesand'necessitating their inspection.

\Vhile we consider the mechanism above described the best embodimentofour invention it is manifest that the same may be modified in many wayswithout departing from the scope and spirit of said invention. Thus, forexample, instead of the locking-bolt, other looking or stopping devicesor catches may be employed. It is to be observed, however, that all thatis essential is to lock, stop, or arrest the pump piston or plunger a,through the action of the justification mechanism, and that thereforeany device under the control of the justification mechanism which willarrest the said pump will be an equivalent of our locking-bolt and itsarrangement, which has only been shown and described as an illustrationof our invention.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is-- 1. In combination with the pumping and'justification mechanism of a linotype or type- 2-..In a linotype ortype-casting machine,

an automatic lock, and an alarm connected therewith, in combination withand under the control of the justifying mechanism, whereby the castingoperation is prevented and the operator notified when the line is notfilled out or the molds are empty.

3. In combination with the pump-leverand justifying mechanism of alinotype or typecasting machine, a locking-bolt, and an alarm connectedtherewith and under the control of the j ustification mechanism, as andfor the purpose specified.

4. In a casting'machine, a metal-pot, a piston or plunger, a lockingdevice, adapted to be operated to lock the piston, in combination with ajustification-lever, and means i11- terposed between thejustification-lever and the locking device for actuating the same,substantially as described.

5. In a casting-machine, a pump-lever for actuating the pump of a1n'etal-pot; and a justification-lever, in combination with a lockingdevice for the pump-lever, and means interposed between the pump-leverand the justi fication-lever, whereby the j ustification-lever willcause the locking device to operate when the j ustilication leverexceeds its normal stroke, substantially as described.

6. In a casting-machine, a pump-lever and a justification-lever, incombination with a locking-bolt adapted to be projected under thepump-lever, a bell-crank, and means be tween the bell-crank and the justification-lever for operating the bell-crank when thejustification-lever exceeds its normal stroke, substantially asdescribed.

'7. In a casting-machine, the combination of the following parts: A justification-lever; a lug as 6, connected therewith, a lever as F, abell-crank, a pitman connecting the bellcrank with the lever F, alocking-bolt connected to the bell-crank, and a pump-lever, the lee-king-bolt being so arranged as to stop the pump-lever when it is projectedby the bell-crank, substantially as described.

8. In combination with the j ustification and pumping mechanism, apump-lever-locking bolt provided with a lateral stud, a casing for thelocking-bolt, which casing is provided with a slot through which thelateral stud projects, the length of the slot being greater than thethrow of the lateral stud, so that the same will strike neither end wallof the slot in its reciprocations, substantially as described.

9. In a casting-machine, a pump-piston, and a locking device adapted tolock or arrest the pumppiston, in combination with an alarm, and aconnecting-rod arranged between the locking device and the alarm,whereby the alarm is sounded whenever the pump-piston is locked orarrested, substan' tially as described.

10. In a casting-machine, a pump-lever and a locking-bolt adapted to beprojected under the pump-lever, in combination with an alarm, and aconnecting-rod between the alarm and the locking-bolt, whereby the alarmis sounded whenever the pump-lever is locked by the locking-bolt,substantially as described.

11. A j ustification-lever provided with a lug or shelf, and a leversuch as F, in combination with a pump-locking mechanism, substantiallyas described, said lever being provided with an adj usting-screw, suchas f to accurately time the action of the pump-locking mechanism.

12. In a line-casting machine, the combination of a pump, a stop deviceto prevent the action of the pump, and means controlled by the line ofmatrices to determine the action of the stop device.

13. In alinotype-machine, the combination with a pump-stop device, of anautomatic alarm mechanism adapted to sound upon the failure of themachine to cast a line.

14. In a linotype-machine, and in combina ERNST BERTRAM. ERNST SANDERS.Witnesses:

H. ADOLPH WINKorP, Louis Bonnnn.

